Description

5-tert-Butyl-3-Methylpyrocatechol is a specialized phenolic compound widely used as a high-performance antioxidant and polymerization inhibitor. Its molecular structure provides excellent stability, making it a critical additive for protecting sensitive materials from oxidative degradation. This product is essential for manufacturers in the polymer, rubber, and specialty chemical industries who require reliable process stabilization and product shelf-life extension.

Application

• Primary antioxidant and stabilizer in the production of synthetic rubbers and elastomers.
• Polymerization inhibitor for monomers such as styrene, acrylates, and vinyl compounds during storage and transportation.
• Additive in lubricants and greases to prevent oxidation and viscosity breakdown under high-temperature conditions.
• Stabilizing agent for adhesives, sealants, and polyurethane systems to enhance shelf life.
• Intermediate in the synthesis of more complex antioxidants and light stabilizers for plastics.
• Protective agent in hydrocarbon-based fuels and industrial fluids.
• Used in research and development for studying antioxidant mechanisms and efficacy.

Basic Information

Product Name	5-tert-Butyl-3-Methylpyrocatechol
CAS No.	2213-66-3
Molecular Formula	C11H16O2
Molecular Weight	180.24 g/mol
Synonyms	3-Methyl-5-tert-butylcatechol; 5-tert-Butyl-3-methyl-1,2-benzenediol; 5-tert-Butyl-3-methylpyrocatechol; MTBP; 3-Methyl-5-(1,1-dimethylethyl)-1,2-benzenediol; 5-tert-Butyl-3-methylcatechol; 4-tert-Butyl-6-methylpyrocatechol (alternate numbering); Antioxidant MTBP
EINECS	218-671-8

Quality Control

Our 5-tert-Butyl-3-Methylpyrocatechol is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity, and identification, to ensure it meets the high standards required for industrial applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain optimal efficacy. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Melting Point	62 - 66 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.